David Krumholtz has found a new onscreen bestie. (Sorry, Louis.)

The actor, last seen on CBS’ short-lived Partners, is joining NBC’s Brenda Forever pilot, TVLine has learned exclusively.

Krumholtz will play a very close pal to Ellie Kemper‘s Brenda, a 31-year-old who does her own thing. He’ll appear as a guest star in the pilot; if the project goes to series, there’s a good chance he’ll be back.

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The potential series would consist of stories from Brenda Miller’s past and present, which would mesh together to give a unique portrait of how a chubby, awkward but incredibly confident 13-year-old grew up to be the woman she is today.

Andrew Leeds (Bones), David Lampson (This One Time With Julia), Peter Tolan (Rescue Me) and Michael Wimer executive-produce the pilot, which also stars Stephnie Weir (MADtv) and Da’vine Joy Randolph.

Krumholtz played Numb3rs‘ math genius Charlie for six seasons. His recent TV work includes The Newsroom, Law & Order: SVU, Don’t Trust the B—- in Apartment 23 and Childrens Hospital.